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Environmental Science and Technology, 2020
Eutrophication has threatened water resources worldwide yet mechanistic understanding on controls of nutrient export remain elusive. This work tests the shallow and deep hypothesis: subsurface chemical contrasts regulate nitrate export patterns under ...
W. Zhi, Li Li
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Eutrophication has threatened water resources worldwide yet mechanistic understanding on controls of nutrient export remain elusive. This work tests the shallow and deep hypothesis: subsurface chemical contrasts regulate nitrate export patterns under ...
W. Zhi, Li Li
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Deep Biosphere: Microbiome of the Deep Terrestrial Subsurface
2019Deep biosphere represents an unexplored realm of planetary life residing underneath the continental and oceanic crusts that constitutes majorly of prokaryotic life forms bacteria and archaea. Microbial communities which reside within various deep subsurface environments form a significant but largely unknown portion of the Earth’s biosphere.
Pinaki Sar +4 more
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Geomicrobiology and Metagenomics of Terrestrial Deep Subsurface Microbiomes
2016Fractures in the deep subsurface of Earth's crust are inhabited by diverse microbial communities that participate in biogeochemical cycles of the Earth. Life on Earth, which arose c. 3.5-4.0 billion years ago, reaches down at least 5 km in the crust. Deep mines, caves, and boreholes have provided scientists with opportunities to sample deep subsurface ...
Itävaara, M. +4 more
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Modelling of deep subsurface for geohazard risk assessment
2021Exploitation of subsurface natural resources, and subsurface storage of energy residues, may cause subsurface and surface deformation and damage to property. Deformation is generally difficult to assess and prove, although economical, environmental and societal interests are huge in terms of strain on granting concessions, (potential) damage claims etc.
Orlic, B., Eijs, R. van
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Starvation-survival of deep subsurface isolates
Current Microbiology, 1993Six deep, subsurface endolithic isolates were subjected to starvation conditions for up to 100 days in artificial pore water, formulated to mimic in situ geochemical conditions in the nearly saturated rock. Most isolates demonstrated the typical starvation-survival curve for chemoheterotrophic bacteria, and all became miniaturized during starvation ...
Penny S. Amy +3 more
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Expanding frontiers in deep subsurface microbiology
Palaeogeography, Palaeoclimatology, Palaeoecology, 2005Abstract The subsurface biosphere on Earth appears to be far more expansive and physiologically and phylogenetically complex than previously thought. Here, several aspects of subsurface microbiology are discussed. Molecular and biogeochemical data, as well as characteristics from new isolates, suggest that ecosystems below deep-sea hydrothermal vents
Jan P. Amend, Andreas Teske
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Deep-sea smokers: Windows to a subsurface biosphere?
Geochimica et Cosmochimica Acta, 1993Since the discovery of hyperthermophilic microbial activity in hydrothermal fluids recovered from "smoker" vents on the East Pacific Rise, the widely accepted upper temperature limit for life (based on pure culture data) has risen from below the boiling point of water at atmospheric pressure to approximately 115 degrees C.
J W, Deming, J A, Baross
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Subsurface sedimentary structure identification using deep learning: A review
Earth-Science Reviews, 2023Chuanjun Zhan +6 more
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Anaerobic hydrocarbon biodegradation in deep subsurface oil reservoirs
Nature, 2004Biodegradation of crude oil in subsurface petroleum reservoirs is an important alteration process with major economic consequences. Aerobic degradation of petroleum hydrocarbons at the surface is well documented and it has long been thought that the flow of oxygen- and nutrient-bearing meteoric waters into reservoirs was necessary for in-reservoir ...
Aitken CM, Jones DM, Larter SR
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Electrical Methods for Deep Subsurface Exploration
IEEE Transactions on Geoscience Electronics, 1967A theoretical study has been made of the transmission of electrical signals through the earth in order to devise the most promising methods for determining the electrical resistance of deeplying formations. It was found that the most effective technique is one which apparently has not been previously proposed.
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